window.appRoot = window.location.origin ;	
(function(w){
	var store = window.localStorage||{};	
	window.setLocalCity = function(city){
		store['localCity'] = city ;
	} ;
	window.setCity = function(city){
		store['city'] = city ; 
	} ;
	window.getLocalCity = function(){
		return store['localCity']||'';
	};
	window.getCity = function(){
		return store['city']||'';
	} ;
}(window));